Sodium hydride → HCID 69527401, compound

Participants

Reaction Steps

Sodium hydride (60 mg, 60% dispersion) was added to a mixture of (3-prop-2-ynylcarbamoylpropyl)carbamic acid tert-butyl ester (0.5 g) and dimethylsulfoxide (10 mL) under argon. The mixture was stirred at rt for 4 h. Saturated aqueous ammonium chloride (30 mL) was added to quench the reaction and the mixture was extracted with ethyl acetate (2×). Combined ethyl acetate layers were washed with water (1×), dried over sodium sulfate, filtered and evaporated. The crude product was purified by column chromatography (20 to 30% ethyl acetate in hexanes) to give [3-(5-methyloxazol-2-yl)-propyl]carbamic acid tert-butyl ester (150 mg). HCl in dioxane (4M, 3 mL) was added to [3-(5-methyl-oxazol-2-yl)-propyl]-carbamic acid tert-butyl ester (250 mg). The mixture was stirred at rt for 2 h and was evaporated to dryness in vacuo to give the HCl salt of 3-(5-Methyloxazol-2-yl)propylamine (228 mg). ESI-MS (m/z) 141 [M+H]+.

Provenance & Evidence